Elemental analysis XRF of inks (1778-1825)
This file contains raw data: the first sheet with spectra counts and a second sheet with ppm results of XRF analysis.
Steps to reproduce
Handle each ancient document with cotton gloves underneath the nitrile ones. Place each sheet on a white expanded polystyrene plate (approximately 2.5 cm thick) Select the point of analysis in the sheet of paper. Select the XRF analysis condition (time, energy, repetitions) in the Olympus Delta Premium hand handled XRF spectrophotometer. Put it vertically against the point of analysis. Collect data.